Mixed Race Studies: The Browning of America https://www.cnn.com/2021/09/04/us/census-browning-of-america-myth-blake/index.html
Who is Black in America? PBS https://www.pbs.org/wgbh/pages/frontline/shows/jefferson/mixed/onedrop.html
The Evolution of Racism and Slavery in the US https://nmaahc.si.edu/learn/talking-about-race/topics/historical-foundations-race
Calvinism, Protestant Christianity and White Supremacy https://www.npr.org/2020/07/01/883115867/white-supremacist-ideas-have-historical-roots-in-u-s-christianity
A Farmer's Almanac